Examples with ItemSum com.actiontech.dble.plan.common.item.function.sumfunc.ItemSum used on opensource projects

Example 21 with ItemSum

use of com.actiontech.dble.plan.common.item.function.sumfunc.ItemSum in project dble by actiontech.

the class OrderedGroupByHandler method sendGroupRowPacket.

private void sendGroupRowPacket(MySQLConnection conn) {
    RowDataPacket newRp = new RowDataPacket(this.fieldPackets.size() + this.sums.size());
    for (ItemSum sum : this.sums) {
        byte[] tmp = sum.getRowPacketByte();
        newRp.add(tmp);
    }
    for (int i = 0; i < originRp.getFieldCount(); i++) {
        newRp.add(originRp.getValue(i));
    }
    nextHandler.rowResponse(null, newRp, this.isLeft, conn);
}

Example 22 with ItemSum

use of com.actiontech.dble.plan.common.item.function.sumfunc.ItemSum in project dble by actiontech.

the class OrderedGroupByHandler method prepareSumAggregators.

/**
 * see Sql_executor.cc
 *
 * @return
 */
protected void prepareSumAggregators(List<ItemSum> functions, List<ItemSum> sumFunctions, List<FieldPacket> packets, boolean isAllPushDown, boolean needDistinct, MySQLConnection conn) {
    LOGGER.info("prepare_sum_aggregators");
    for (int i = 0; i < functions.size(); i++) {
        ItemSum func = functions.get(i);
        ResultStore store = null;
        if (func.hasWithDistinct()) {
            ItemSum selFunc = sumFunctions.get(i);
            List<Order> orders = HandlerTool.makeOrder(selFunc.arguments());
            RowDataComparator distinctCmp = new RowDataComparator(packets, orders, isAllPushDown, this.type());
            store = new DistinctLocalResult(pool, packets.size(), distinctCmp, this.charset).setMemSizeController(session.getOtherBufferMC());
            distinctStores.add(store);
        }
        func.setAggregator(needDistinct && func.hasWithDistinct() ? AggregatorType.DISTINCT_AGGREGATOR : AggregatorType.SIMPLE_AGGREGATOR, store);
    }
}

Example 23 with ItemSum

use of com.actiontech.dble.plan.common.item.function.sumfunc.ItemSum in project dble by actiontech.

the class OrderedGroupByHandler method sendGroupFieldPackets.

/**
 * new fieldPackets: generated function result + origin fieldpackets
 */
private void sendGroupFieldPackets(BackendConnection conn) {
    List<FieldPacket> newFps = new ArrayList<>();
    for (ItemSum sum1 : sums) {
        Item sum = sum1;
        FieldPacket tmp = new FieldPacket();
        sum.makeField(tmp);
        newFps.add(tmp);
    }
    newFps.addAll(this.fieldPackets);
    nextHandler.fieldEofResponse(null, null, newFps, null, this.isLeft, conn);
}